Improvement in oscillating pumps



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Oscillating Pumps.

No. 196,732. Patented Oct. 30, I877.

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Oscillating Pumps. Patented Oct; 30, 1877.

v No. 196,732.

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N. PETERS, PHOTO-LITNDG'RAPHER. WASHINGTON, DY'C.

GUSTAVUS R. WINKLER, or WILLIAMSPORT, PENNSYLVANIA.

IM PROVEMENT lN- OSCILLATING PUMP S.

. Specification forming part of Letters Patent No. 196,732, dated October 30, 1877; application filed August 27, 1877.

To all whom it may concern:

Be it known that I, GUSTAVUs R.WINKLER, of Williamsport, in the coimtyof Lycoming and State of Pennsylvania, have invented a new and useful Improvement in FOIOGPH1I11)S, and'I do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference'marked thereon.

The object I have in view' is the production of an oscillating pump which will be cheap and compact in construction, durable in wear, and efficient in operation; and my invention therein consists, first, in the peculiar scrollplunger, and in the means for operating the same; second, in the construction of such plunger with a central disk, which divides the interior of the pump into two parts, each provided with inlet and outlet ports; third, in the peculiar construction of the shell of the pump, cast intwo pieces with the heads and the internal cylinders; fourth, in the devices for attaching the eccentric tothe operatingshaft so as to have a limited movement thereon; and, further, in the various combinations of the operative parts, as fully hereinafter explained.

In the drawings, Figure 1 represents a pers'pective view of the pump; Fig. 2, an elevation, with one-half of the shell removed and the shaft in section; Fig. 3, a crosssection through the operating eccentric and shaft; Fig. 4, a vertical section of the pump on the line of the shaft; Fig. 5, elevations, from the inside, of the heads of the pump, showing the plunger in dotted lines; and Fig. 6, a separate view of the plunger.

Like letters denote corresponding parts.

The shell of the pump is of cylindrical form, and is made in two parts, AA, with enlarged inner port-ions a a, secured together by bolts 00*. The heads 13 B of the cylinder are, preff erably, cast in one piece with the corresponding parts of the shell, and on the inside of these heads are cast short cylinders O O,

. which proj ect centrally inward, leaving a space between their ends, when the parts A A are secured in position. The casing of the pump is supported on any suitable bed, and a shaft, D, runs centrally through the heads B B and cylinders G O, and turns in proper journalbearings, which shaft is provided with a pulley or cog or other gearing, through which the pump isrotated by steam or other power. On the shaft D, between the ends of the cylinders G O, is keyed an eccentric, E. The shaft at this point is squared, and projects to one side of the body of the same, to form a short crank, as shown by b and the eccentric has a rectangular slot, 0, passing through one of its sides,

which slips over the squared portion 1). A 4 spring, a, is placed between the end of this crank and the inner end of the slot b, which if allows the eccentric a limited movement on the squared shaft. F is a disk, having acentral circular hole, in which the eccentric E revolves. This disk fills the entire space between the cylinders G G, and projects into the extended chamber d, formed by the enlarged inner ends of the parts of the shell, the disk having an oscillating movement in such space. This disk, with the cylinders G O, divides the cylinder of the pump into two annular chambersf To guide the disk in its movement, I secure to its sides, near the periphery thereof, two or more pins, d, which set into holes in guide wheels or disks F. The guiding disks are made of the required size, and are set into the sides of the enlarged portions of the shell within the chamber cl. I have shown in the drawing only two of these. guiding-disks, one on each side of the disk F, and on diametrically opposite sides of the piunp; but I prefer, in practice, to use six of the said guiding-disks, three on each side. M For lubricating the working parts of the pump, the chamber cl is partly filled with oil through a plug, d, in the top of theshell, and

the disk F, by moving around in thischamber, keeps its frictional-surfaces welloiled. A number of holes, d are bored through the disk F, from its periphery to the central opening, in which the eccentric works, and such eccentric is thereby kept lubricated from the oil in the chamber cl. Any impurities or any water which may get into the chamber d is. worked, by the disk F, into the bottom of such chamber, and can be carried off through p With the disk Fis cast a scroll-phmger, H,

F. These slots are placed'diametrically opposite each other, the slot f in the wing 6 being in the upper side of its wing, while the slot f is in the lower side of the wing e.

In the lower part of the head B are formed two ports, (inlet and outlet,) I I, which are separated from each by a partition, g. This partition projects inwardly to the inner end of the cylinder 0, and from such cylinder extends to the shell of the pump, dividing the annular chamber G at this point, and projecting into the slot f of the plunger. These ports are connected with suitable suction and force pipes. (Not shown.)

The head B is provided with a similar partition, g, and like inlet and outlet ports K K, situated at the lower periphery thereof, and having water-conveying pipes similar to those connected with the ports I I.

The two suction-pipes maybe united at any proper point, and have a single pipe, through which the water will be drawn and I also prefer, in constructing my piunp, to join the two outlet-pipes, and lead therefrom a single pipe,

' for delivering the water at the desired place.

A spring packing, k, may be placed on the side of each of the internal cylinders, just inside of the inlet-ports, to prevent back pressure; but this packing can be dispensed with.

The suction-pipe being connected with the water-supply, and the shaft turned in the rection shown by the arrows, the Water will e drawn in the ports I K, and forced from the ports I K, since, by the peculiar oscillating motion of the scroll-plunger, there will be a constant suction at the inlet-ports, alternately within and 011 the outside of such plunger, and at the same time a constant forcing of the water at the outlet-ports, this pressure being exerted alternately by the contraction of the space within the plunger and that between such plunger and the shell of the pump.

While on one side of the disk F the plunger is throwing but a small stream, the opposite side of the plunger will be exerting its greatest pressure; (shown in dotted lines, Fig. 5;) and both outlet-pipes being joined, as above described, these pressures may be so graduated that a constant stream will be ejected without the use of an air-chamber to equalize Should any small obstruction get between the scroll-phuiger and the shell, or between such plunger and the inner cylinders, the eccentric would move upon. the spring 2, and

allow the plunger to pass over the obstruction. The pump, constructed as above described, is very simple in construction, has no valves which are expensive to replace or keep in re pair, and requires but little packing. In its operation there is no back pressure, and consequently no leakage; and the scroll-phmger, having a constant forward motion, there is no waste of power in overcoming the momentum of the plunger, as in ordinary pumps. There is also no friction of the parts, except at the outer ends of the plunger, where it rubs against the heads, and on the side of the disk F at the points in contact with the extended portion of the shell, so that the inside of the pump can be covered with vulcanized india-rubber or other substance to prevent corrosion, thus adapting the pump for use in pumping out mines and other like places. Y

Having thus fully described my pump,,and explained some of its advantages, what I claim as new therein, and desire to secure by Letters Patent, is y 1. In an oscillating pump, the scroll-plunger H, substantially as described.

2. The combination of the scroll-plunger and an eccentric-shaft for operating the sa1ne,substantially as and for the purposes set forth. 3. The combination, withthe scroll-plunger, of the disk F, for dividing the cylinder of the pump into two parts, substantially as and for the purposes set forth. 4;The combination, .with the shell of the pump, of an oscillating plunger and two sets of inlet and outlet ports, arranged substan: tially as described and shown. 5. The combination of the shell A. A, heads B B, and cylinders C G, cast in two pieces,

substantially as described and shown.

6 The combinatiomwith the shell, heads, and internal cylinders, of the eccentric disk 1*, slotted plunger H, inlet and outlet ports, and partitions g g, substantially as describedand shown. I

7 The squared portion 1) of the shaft, in combination with the. slotted cam E and spring 0, substantially as described and shown.

8. The combination, with the scroll-plunger, of the eccentric for operating the same, and the guiding-disks for controlling its motion, substantially as and for the purpose set forth.

This specification signed and witnessed this 9th day of July, 187 7 GUSTAVUS n. WINKLER.

Witnesses H. O. McGoRMIoK, CHARLES MILLER. 

